94 results about "Total petroleum hydrocarbon" patented technology

The invention relates to a thermal driving desorption restoration method of polluted soil. The method comprises the steps that a thermal driving desorption restoration system of the polluted soil is adopted; waste heat of high-temperature flue gas, high-temperature air, high-temperature steam or high-temperature liquid serves as a heat source; and indirect heating is performed to restore the polluted soil. The restored soil can reach a subsequent recycling requirement. The method is suitable for restoring the soil polluted by organic matters such as VOCs (volatile organic compounds), SVOCs (semi volatile organic compounds), PAHs (polycyclic aromatic hydrocarbons), PCBs (polychlorinated biphenyls), TPHs (total petroleum hydrocarbons) and pesticides, is also suitable for restoring the soil polluted by thermal-sensitive heavy metal such as Hg and As, is high in reaction speed, short in restoration cycle, safe and stable in operation, and economically feasible, adopts automatic control and real-time monitoring, has no secondary pollution, and has good environment-friendly and social benefits; and a removal rate of a pollutant reaches above 99%.

The invention belongs to the technical field of environmental treatment and in particular relates to a microorganism-electric power two-segment repairing method for petroleum contaminated soils. According to the microorganism-electric power two-segment repairing method disclosed by the invention, conversion between two segments including microorganism repairing and electrokinetic repairing is carried out with the ratio of the total petroleum hydrocarbon content and the total organic carbon content in contaminated soils, and the purpose of preparing the petroleum contaminated soils is achieved; microorganisms are capable of preferentially degrading light components which are easily degraded in petroleum hydrocarbon and then removing heavy components by virtue of the strengthening effect of an electric field, and staged degradation of pollutants is realized; the problem that the pollutants can not be completely degraded by virtue of single microorganisms is solved, and the energy consumption by virtue of single electrokinetic remediation is also lowered; the microorganism-electric power two-segment repairing method is rapid in speed for repairing the petroleum contaminated soils, high in efficiency and low in cost; and compared with single microorganism repairing and single electrokinetic repairing, the efficiency is improved by above 20-40 percent.

The invention belongs to the technical field of environmental pollution, in particular to a method for enhancing the petroleum pollution removing effect of seawater. The method comprises the following steps of: culturing high-yield biological surfactant bacteria and efficient petroleum degrading bacteria cultured and screened in a biological trickling filter in a mixed way by taking chitosan as a carrier, and performing freeze drying to obtain a microbial agent (bacterial powder); and treating petroleum pollution simulation seawater with the bacterial powder, wherein three days later, the initial concentration is 1,700 mg / L, the salinity is 3 percent, the removing rate of total petroleum hydrocarbon in the simulation seawater is over 95 percent, and the total petroleum hydrocarbon concentration in the seawater is lower than the primary standard in the Effluent Standards for Oil-Bearing Waste Water from Offshore Petroleum Development Industry. In the method, chitosan is taken as a carrier, so that microorganisms better float on the sea level and are tightly contacted with pollutants on the surface of seawater, and the petroleum removing rate is increased; moreover, the treatment cost of oil stains is reduced greatly; and the production process of the bacterial powder is safe, the application method is simple, and secondary environmental pollution is prevented.

The invention relates to a petroleum degradation bacterium in oil-containing sludge. The degradation bacterium is preserved in the Chinese Academy of Sciences of the China General Microbiological Culture Collection Center CGMCC in #3, No.1 Courtyard, Western Beichen Road, Chaoyang District, Beijing, the preservation serial number is CGMCC8647, and the class number is Corynebacteriumglutamicum. The petroleum degradation bacterium (RSI) is separated from the oil-containing sludge in the Bohai Oilfield, the preservation serial number is CGMCC8647, the experiment shows that the RSI is relatively high in degradation rate for saturated hydrocarbon, that is, as high as 20.74 percent, the degradation rate of the bacterium for total petroleum hydrocarbon (TPH) in the oil-containing sludge within 30 days is 39.69 percent, and the optimal degradation conditions of the bacterium for petroleum are that the temperature is 37 DEG C, the salinity is 0.5-5 percent, and the pH value is 6-8.

The invention discloses a highly effective degradation strain JN6 for petroleum hydrocarbons in oily sludge and application thereof, which belong to the technical field of bioremediation. The degradation strain JN6 is preserved in the China General Microbiological Culture Collection Center, the preservation number is CGMCC NO. 14977, and the classification number is Comamonas sp. The strain JN6 with a petroleum hydrocarbon degradation function which is disclosed by the invention is applied to treatment of oily sludge by degrading petroleum hydrocarbons, the degradation rate of the single strain of bacteria on total petroleum hydrocarbon (TPH) in oily sludge is 62.16 percent within 30 days, and the optimum degradation conditions of the bacteria on petroleum pollutants are 15 DEGC to 40 DEGC and the pH value of 7 to 11. The biological method is used in oily sludge remediation technology, and has the advantages of high effectiveness, low cost, environment-friendliness and the like.

The invention discloses a highly effective degradation strain JN4 for petroleum hydrocarbons in oily sludge and application thereof, which belong to the technical field of bioremediation. The degradation strain JN4 is preserved in the China General Microbiological Culture Collection Center, the preservation number is CGMCC NO.14975, and the classification number is Pseudomonas stutzeri. The strainJN4 with a petroleum hydrocarbon degradation function which is disclosed by the invention is applied to treatment of oily sludge by degrading petroleum hydrocarbons. The degradation rate of the bacteria on total petroleum hydrocarbon (TPH) in oily sludge is 71.05 percent within 30 days. The single strain provided by the invention has obvious degradation capability on n-C10 to n-C30, and GC-MS (gas chromatography-mass spectrometry) analysis indicates that the strain has strong degradation capability on cycloalkane naphthane, indane and d-homoandrostane. The optimum degradation conditions of the bacteria on petroleum pollutants are 25 DEGC to 40 DEG C and the pH value of 5 to 11. The biological method is used in oily sludge remediation technology, and has the advantages of high effectiveness, low cost, environment-friendliness and the like.

The invention relates to an enhanced in-situ chemical oxidation repairing technology of soil and underground water. The enhanced in-situ chemical oxidation repairing technology comprises the steps offield measurement, repairing equipment construction, oxidation reagent injection, air injection, biopreparate injection, gas-liquid separation and tail gas treatment. Oxidation reagents are conveyed to a polluted part by using a dosing pump through a horizontal reagent injection well, reaction gas is conveyed to a gas-liquid separation device by an extraction pump through a horizontal extraction well, and separated gas is removed through a plasma purifier; and after reagent injection is conducted, gas injection is conducted on a horizontal gas injection well through a gas injection pump, and after a certain period, biopreparate is injected into the polluted part through the dosing pump. According to the enhanced in-situ chemical oxidation repairing technology of the soil and the underground water, the removing rate to the total petroleum hydrocarbon in a polluted site with the concentration of the total petroleum hydrocarbon (less than C16) being high can reach over 90%, the single well repairing area is large, the application range is wide, and secondary pollution is low.

An apparatus and method to determine analytes in a fluid. One aspect of the present invention is for the determination of the oil content of water using UV, near-IR, IR or Raman spectroscopy or radiometry. In certain embodiments, a solid membrane material absorbs analytes from fluid brought into contact with it. The membrane is subsequently placed in a FTIR spectrometer, which spectrometer is enabled to determine the concentration of analytes in fluid by calibration. Certain embodiments can determine the type of hydrocarbon present, and thus can differentiate Total Petroleum Hydrocarbons (TPH) from Total Oil and Grease (TOG), without any separate sample preparation.

The invention relates to the technical field of plant remediation of oil-contaminated soil, in particular to a method for treating and remediating oil-contaminated soil by using gaillardia aristata pursh flower plants. The method is to plant gaillardia aristata pursh in oil-contaminated soil. When the total petroleum hydrocarbon concentration of the soil is 10,000mg / kg, the growth amount of the plants is not inhibited basically, and the gaillardia aristata pursh can effectively degrade the total petroleum hydrocarbon in the oil-contaminated soil through the combined functions of the developed roots and root microbes to reduce the total petroleum hydrocarbon content in the contaminated soil. When the gaillardia aristata pursh is planted for 90 days, the degradation rate of the total petroleum hydrocarbon content in the contaminated soil can reach 56.63 percent which is nearly 4 times a blank natural degradation rate which is 15.49 percent. This proves that the gaillardia aristata pursh has high oil contamination resistance and high total petroleum hydrocarbon degradation capability. Thus, the total petroleum hydrocarbon in soil can be effectively removed by planting the gaillardia aristata pursh in the oil-contaminated soil, and removing all plants and well treating the plants in a centralized manner after the plants are mature.

The invention provides a selective degradation method for petroleum pollutants in soil rich in organic matters. According to the selective degradation method, a Fenton reagent consisting of hydrogen peroxide and Fe<2+> is taken as an oxidization reagent; and a complex solution of citric acid and calcium chloride is added into a Fe<2+> solution in the Fenton reagent and used as a selective regulator to improve selective oxidative degradation of the Fenton reagent to the petroleum pollutants. TPH (total petroleum hydrocarbons) are selectively degraded by the Fenton reagent, so that the TPH removal rate is increased, the oxidization of SOM (soil organic matter) is reduced, the stability and the utilization rate of hydrogen peroxide in a Fenton system can be improved, and the service life of a hydroxyl radical is prolonged.

The present invention relates to degradation of petroleum polluted soil, and is especially combined catalyst and microwave process for degrading total petroleum hydrocarbons in petroleum polluted soil. The process includes setting the mixture of petroleum polluted soil, catalyst in 0.2-1.0 wt% of the soil and water in 5.0-30.0 wt% of the soil inside sealed PTFE tank, and degrading in a microwave slaking apparatus in the conditions of microwave frequency of 2450 MHz, microwave power of 400 W, and pressure of 0.2 MPa for 3-11 min. The present invention has the advantages of high pollutant eliminating efficiency, high speed, easy operation, low cost and no secondary pollution.

The invention discloses a microwave remediation method for a polycyclic aromatic hydrocarbon contaminated site. The method comprises the following steps: air-drying soil contaminated by polycyclic aromatic hydrocarbon and total petroleum hydrocarbon under natural conditions, ensuring that the moisture content of the air-dried soil is 10-25%, screening the air-dried soil, removing big stones and concrete blocks to obtain the to-be-processed soil, mixing certain amount of a microwave absorbent and the to-be-processed soil evenly, putting the to-be-processed soil mixed with the microwave absorbent into a microwave processing device, starting a microwave generator of the microwave processing device, ensuring that the temperature in the microwave processing device reaches a preset temperature, and carrying out microwave processing on the to-be-processed soil for a period of time. The method provided by the application of the invention is simple and easy in operation, short in operation time and high in processing efficiency, is removable, safe and environment-friendly, more importantly, the yield of tail gas in the processing stage is low, the purifying cost is low, and a novel effective method is provided for thermal remediation of the contaminated soil.

The invention discloses high-efficiency degrading bacteria JN5 for petroleum hydrocarbons in oily sludge and its application and belongs to the technical field of bioremediation. The degrading bacteria JN5 are preserved in the China general microbiological culture collection center, have a preservation number of CGMCC NO. 14976 and are classified as Pseudomonas stutzeri. The bacteria JN5 with a petroleum hydrocarbon degradation function are used for treating oily sludge through petroleum hydrocarbon degradation. In 30 days, the bacteria JN8 have the oily sludge total petroleum hydrocarbon (TPH) degradation rate of 73.73%. The bacteria JN5 have significant ability to degrade linear petroleum hydrocarbons of n-C10 to n-C26 based on a single strain. The optimal degradation conditions of the bacteria to petroleum contaminants comprise a temperature of 20-50 DEG C and pH of 7-11. The bioremediation method for oily sludge has the advantages of high efficiency, low cost and environmental friendliness.

The invention discloses a biological compost processing method of oil-based drilling wastes. The method comprises the following steps: screening strains capable of efficiently degrading petroleum hydrocarbons from the oil-based drilling wastes, and carrying out orthogonal experiment to prepare a solid compounded inoculant; adding the solid compounded inoculant into the oil-based drilling wastes, adding rice chaff as a supporter, and uniformly mixing to obtain compost of the oil-based drilling wastes; and adjusting the carbon / nitrogen ratio and the water content of the compost, turning, and carrying out sampling analysis to complete onsite composting. The degradation rate of total petroleum hydrocarbons in the oil-based drilling wastes reaches above 80% 1 month after the method is used to process the oil-based drilling wastes; and compost obtained in the invention can be used for planting plants, and the growth vigor of the plants is good within 3 months. The method has the advantages of simple process, simple required capital construction facility, handy enforcement surrounding a well site, short cycle, easy control, high degradation efficiency of the oil-based drilling wastes, low processing cost, and solving of troubles in economy and environmental protection for efficient exploitation of oil and gas fields.

The invention discloses an efficient degradation strain JN7 of petroleum hydrocarbons in oily sludge and application thereof, and belongs to the technical field of biological restoration. The degradation strain JN7 is preserved in CGMCC (China General Microbiological Culture Collection Center), has the preservation number of CGMCC NO.14978, and has the classification number of Pseudomonas sp.. Thepurpose of the strain JN7 with the petroleum hydrocarbon degradation function is the oily sludge control performed in a petroleum hydrocarbon degradation mode. The degradation rate of the bacterium in 30 days on the TPH in the oily sludge is 50.75 percent; the singe strain of the bacterium has the obvious degradation capability on n-C10 to n-C30 petroleum hydrocarbons; GC-MS analysis shows that the petroleum hydrocarbon substances in oily sludge take oxidization reaction under the effect of the strain to form a great number of phenol and ketone type intermediate products. The bacterium has the most proper degradation conditions of the temperature being 20 to 50 DEG C and the pH value being 7 to 11 on petroleum contaminants. The biological method is used for the restoration technology of the oily sludge, and has the advantages of high efficiency, low cost, environment-friendly effect and the like.

The invention discloses an efficient treatment system of oil sludge. The TPH (total petroleum hydrocarbons) content of the oil sludge treated is less than 1%. The oil sludge enters a dryer with a stirrer and an outer heating coil and is subjected together with hydrogen separated by a nitrogen making machine, to heat exchanging via heat transfer oil, a resulting product is subjected with oil sludge directly to convection drying, cracking heat of a thermal desorption unit performs on indirect heating on the oil sludge through the outer heating coil of the dryer, viscosity of the oil sludge is decreased after free water, interstitial water and part of light gases are removed, chances that the oil sludge cake in the heat desorption unit are also slimmed, and long-term running of the thermal desorption unit is guaranteed; the dryer with the stirrer and the outer heating coil uses the cracking heat of the thermal desorption unit, thus energy is saved; gases subjected to oil removal, dust removal and odor removal are used as fuels for a combustor, thus energy is saved; high-hydrogen gas from the dryer with the stirrer and the outer heating coil separates oil and water through bubbles generated by an air flotation machine, oil-water separation is efficient, and the separated oil is used as a fuel for the combustor, thus energy is saved.

The invention discloses an efficient degradation strain JN1 of petroleum hydrocarbons in oily sludge and application thereof, and belongs to the technical field of biological restoration. The degradation strain JN1 is preserved in CGMCC (China General Microbiological Culture Collection Center), has the preservation number of CGMCC NO.14972, and has the classification number of Acinetobacter sp.. The purpose of the strain JN1 with the petroleum hydrocarbon degradation function is the oily sludge control performed in a petroleum hydrocarbon degradation mode. The degradation rate of a single strain of the bacterium in 30 days on the TPH in the oily sludge is 58.05 percent; the most proper degradation conditions of the bacterium on petroleum contaminants are the follows: the temperature is 25to 50 DEG C and the pH value is 5 to 7. The biological method is used for the restoration technology of the oily sludge, and has the advantages of high efficiency, low cost, environment-friendly effect and the like.

The invention relates to a method for preparation of a drifting road subgrade filler from oil field oily sludge. The method includes: conducting heat treatment on oily sludge by anaerobic heating; conducting solid-liquid separation, and recovering polluted oil and sewage to conduct treatment; adding a curing agent, a drying agent, fine aggregate and an improved additive into the remaining solid, and placing the mixture into a curing box to conduct curing; measuring the CBR values of the molded sample respectively on 3d, 7d and 28d, unconfined compressive strength, and plasticity index parameters; selecting a qualified oil sludge sample, fully mixing the sample with local soil according to an adding ratio of 0.5t / m<3>, performing rolling according to a compaction degree of 94%, after meeting the requirements, conducting soaking in water for 24h, and measuring the total petroleum hydrocarbon amount and the content of polycyclic aromatic hydrocarbon and heavy metals in the leachate according to national standards; and respectively comparing the engineering technological indexes and leachate pollutant indexes of the oily sludge improved filler with relevant national standard specifications, and judging the product performance. The method provided by the invention improves the resource utilization level of oily sludge and reduces the treatment cost.

The invention provides a biochemical process for in-situ remediation of black and odorous sediments polluted by organic matters. The biochemical process comprises the following steps: S1, adding sodium acetate into the sediments; S2, adding calcium nitrate into the sediments. The biochemical process has the beneficial effects that firstly, sodium acetate are added into the sediments, so that available carbon sources are provided for microorganisms in the sediments, bio-enzymes capable of degrading PAHs (polycyclic aromatic hydrocarbons) and TPH (total petroleum hydrocarbons) are induced while a large quantity of the microorganisms reproduce and grow, and PAHs and TPH are quickly degraded and removed by adopting a methane production process and a sulfate reduction process under the enzymatic reaction; secondly, calcium nitrate is added into the sediments while the effect of continuously degrading low-molecular-weight organic matters and a relatively good removal effect on the low-molecular-weight organic matters are achieved; the purposes of degrading organic matters with different molecular weight and removing difficultly degraded organic matters from the sediments are achieved through the synergistic effect of sodium acetate and calcium nitrate.

The invention relates to the technical field of determination of content of an organic mixture in soil and specifically discloses a detection method for total petroleum hydrocarbon in contaminated soil. The detection method comprises the following steps: 1) extracting: mixing to-be-detected soil with an extracting reagent, performing ultrasonic extraction, centrifuging and taking supernate as a to-be-detected sample solution, wherein petroleum ether is taken as the extracting reagent, the ratio of soil to liquid is 1:4, the ultrasonic extraction is performed for two times, the ultrasonic extraction duration is 20min each time and the ultrasonic extraction power is 100W; 2) determining: using a microplate reader for determining the absorbance value of the to-be-detected sample solution under the detection wavelength and utilizing an external standard method to determine the content of total petroleum hydrocarbon in the to-be-detected sample solution, wherein the detection wavelength is 304nm. The detection method provided by the invention has the advantages of less extracting agent dosage, low pollution, high detection speed, high accuracy, less determining solution dosage and suitability for quantitative determination of a trace of petroleum pollution environmental samples.

The invention discloses high-efficiency degrading bacteria JN2 for petroleum hydrocarbons in oily sludge and its application. The degrading bacteria JN2 are preserved in the China general microbiological culture collection center, have a preservation number of CGMCC NO. 14973 and are classified as Rheinheimera sp. The bacteria JN5 with a petroleum hydrocarbon degradation function are used for treating oily sludge through petroleum hydrocarbon degradation. In 30 days, the bacteria JN2 have the oily sludge total petroleum hydrocarbon (TPH) degradation rate of 93.3%. The optimal degradation conditions of the bacteria to petroleum contaminants comprise a temperature of 15-50 DEG C and pH of 7-11. The bioremediation method for oily sludge has the advantages of high efficiency, low cost and environmental friendliness.

The invention provides a gas chromatography method for petroleum hydrocarbon component, comprising the following steps: (1) unifying the scope of total petroleum hydrocarbon, that is all hydrocarbonsincluding n-hexane and n-tetraconta-carbon alkyl in a gas chromatography effluent; (2) regulating calibration substances and a calibration method, wherein total petroleum hydrocarbon (TPH) is volatilepetroleum hydrocarbon (VPH) and semi-volatile petroleum hydrocarbon (SPH), 5 n-alkanes with 6-10 carbon atoms in total are selected as a VPH calibration substance, 31 n-alkanes with 10-40 carbon atoms in total are selected as SPH calibration substances, and a calibration relationship of peak area to concentration of the calibration substances is established by an average response factorization method or a primary linear regression method; (3) quantifying all target chromatographic peaks in a sample chromatography one by one with an adjacent standard peak calibration method; (4) calculating total petroleum hydrocarbon and the petroleum hydrocarbon content of any segment.

The invention relates to a restoration method of the soil polluted by high-concentration petroleum, in particular to a method for restoring soil polluted by high-concentration petroleum by utilizing chemical oxidant pretreatment and subsequent plant, and the content of the total petroleum hydrocarbon in the soil after restoration by the method is greatly lowered. In the restoration of the soil polluted by petroleum hydrocarbon by adopting H2O2 oxidation in combination with plants, the once addition amount of H2O2 is 8ml / 10g soil, the soil which is pretreated by H2O2 oxidation is restored by cotton; and the degradation efficiency of the total petroleum hydrocarbon in the soil polluted by petroleum restored by H2O2 in combination with cotton is dramatically higher than that by single chemical or plant restoration, and the addition of H2O2 does not inhibit the growth of cotton. The method can effectively restore the soil polluted by high-concentration petroleum, the 127d total petroleum degradation rate reaches 93.9%, while single plant or chemical degradation can not reach the degradation efficiency. The method for processing soil polluted by high-concentration petroleum has lower cost, great actual application value, short restoration time, has the advantages of chemical restoration and plant restoration simultaneously, and can lower the concentration of the petroleum hydrocarbon in the polluted soil in a short time.

The invention discloses a highly effective degradation strain JN3 for petroleum hydrocarbons in oily sludge and application thereof, which belong to the technical field of bioremediation. The degradation strain JN3 is preserved in the China General Microbiological Culture Collection Center, the preservation number is CGMCC NO. 14974, and the classification number is Pseudomonas sp. The strain JN3with a petroleum hydrocarbon degradation function which is disclosed by the invention is applied to treatment of oily sludge by degrading petroleum hydrocarbons. The degradation rate of the bacteria on total petroleum hydrocarbon (TPH) in oily sludge is 61.81 percent within 30 days. The single strain provided by the invention has obvious degradation capability on long-chain alkane (greater than C20), and GC-MS (gas chromatography-mass spectrometry) analysis indicates that the strain has strong degradation capability on hopane (C29H50). The optimum degradation conditions of the bacteria on petroleum pollutants are 20 DEGC to 45 DEG C and the pH value of 7 to 11. The biological method is used in oily sludge remediation technology, and has the advantages of high effectiveness, low cost, environment-friendliness and the like.

The invention discloses an accurate monitoring and evaluation method for volatile petroleum hydrocarbons in an organic contaminated site, and the accurate monitoring and evaluation method comprises the following steps: a. qualitative analysis and grouping of major petroleum hydrocarbon pollutants in the contaminated site; b. selecting of a representative contaminated site internal standard (RICCS)and indoor internal standard (IS), and quantification of the contaminated site internal standard; c, use of a RICCS area normalization method to determine the content of each group of the petroleum hydrocarbon; d, calculation of correction factors during the selecting of the contaminated site internal standard and RICCS switching; e, comparison with the contaminated site internal standard, calculation of the concentration content of each group of each series point in turn according to the method of the step c, and drawing of a standard curve; and f, determining of the contents of different carbons of the petroleum hydrocarbons and calculation of the content of the total petroleum hydrocarbons. The evaluation method system can accurately determine the contents of different carbons (C3-C11)of the petroleum hydrocarbons in the volatile petroleum hydrocarbons and also calculate the exact content of total volatile petroleum hydrocarbons.

An apparatus and method to determine analytes in a fluid. One aspect of the present invention is for the determination of the oil content of water using UV, near-IR, IR or Raman spectroscopy or radiometry. In certain embodiments, a solid membrane material absorbs analytes from fluid brought into contact with it. The membrane is subsequently placed in a FTIR spectrometer, which spectrometer is enabled to determine the concentration of analytes in fluid by calibration. Certain embodiments can determine the type of hydrocarbon present, and thus can differentiate Total Petroleum Hydrocarbons (TPH) from Total Oil and Grease (TOG), without any separate sample preparation.

The invention discloses a component separating and determining method of total petroleum hydrocarbons in soil. The method comprises a step of extracting a soil sample into an organic solvent by accelerated solvent extraction and concentrating an extraction liquor after extraction is completed, a step of filling a chromatographic column with aluminium oxide, allowing the concentrated extraction liquor to flow through the chromatographic column, eluting and collecting aliphatic hydrocarbons and aromatic hydrocarbons in the chromatographic column with n-hexane and dichloromethane, and a step of concentrating aliphatic hydrocarbon and aromatic hydrocarbon collection fluids, allowing the concentrated aliphatic hydrocarbon and aromatic hydrocarbon collection fluids to enter a gas chromatographyanalyzer to obtain the concentrations of the aliphatic hydrocarbons and the aromatic hydrocarbons in the total petroleum hydrocarbons. The method is simple to operate, the separation and determinationof the aliphatic hydrocarbons and the aromatic hydrocarbons in the total petroleum hydrocarbons are realized, the judgment of the degree of damage of the total petroleum hydrocarbons in the soil is facilitated, the environmental pollution is avoided, and the human health is ensured.

The invention discloses a method for detecting total petroleum hydrocarbon C10-C40 in soil and sediments, which comprises the following steps of extracting, purifying on line, concentrating, fixing the volume of the total petroleum hydrocarbon C10-C40 in the soil and sediments, detecting by using a gas chromatograph with a hydrogen flame ionization detector, determining the nature according to a retention time window, and quantifying by using an external standard method. The adsorption material filled in the extraction tank is Florisil, which can be extracted by n-hexane or n-hexane-acetone and is not adsorbed by magnesium silicate; a sample and adsorbent uniform mixing-online purification accelerated solvent extraction method is adopted; the purification process is completed in a closed system of the extraction tank; the sample and the adsorbent are directly and uniformly mixed; compared with other purification methods, the method has the advantages that the adsorbent and the sample do not need to be filled in a layered manner, extra addition of a fiber filter membrane is avoided, operation steps are reduced, loss caused by repeated transfer in the extracting solution purificationprocess is avoided, the use amount of an organic solvent is reduced, and the sample recovery rate is increased.

The invention provides an oily pollutant ultraclean treatment process and oily pollutant ultraclean treatment equipment, and relates to the technical field of oily pollutant ultraclean treatment. Theoily pollutant ultraclean treatment equipment comprises a crusher, a feeder, a thermal desorption furnace, a combustion fan, an oil-gas dust collector, a combustion-supporting air heater, an oil-gas two-phase separator, an oil-gas condenser, a three-phase separator, a non-condensable gas buffer tank, an oil phase buffer tank, a wastewater tank, a high temperature heat conductive oil storage tank,a generator set, a low temperature heat conductive oil storage tank and a distributed control system (DCS) intelligent autonomous control system. Oily pollutants are quantitatively conveyed to the feeder in an airtight way through a pipeline after being crushed by means of the crusher, and is then transported to a thermal desorption device, so that the labor intensity is lightened; an anaerobic thermal desorption reaction is realized by means of high temperature anaerobic operation; the non-condensable gas is recycled as fuel; the total petroleum hydrocarbon (TPH) of the treated solid phase residue is less than 0.05 percent; a closed dry slagging technology is adopted, so that clean discharge of the residue is realized; a flue gas waste heat recovery heat exchanger and the oil-gas condenser are used for realizing waste heat recovery; after the generator set is used for power generation for reuse, the recovery utilization rate of the waste heat can reach 90%.

The present invention relates to a petroleum-degrading bacterium in oily sludge. The degrading bacterium is preserved in CGMCC, General Microorganism Center of China Microbial Strain Preservation Management Committee, address: No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing, Institute of Chinese Academy of Sciences, Deposit number: CGMCC8647, classification number is Corynebacterium glutamicum. This application isolates oil-degrading bacteria (RS1) from oily sludge in Bohai Oilfield, and its preservation number is CGMCC8647. It has been proved by experiments that RS1 has a high degradation rate of saturated hydrocarbons, reaching 20.74%. The degradation rate of total petroleum hydrocarbons (TPH) was 39.69%. The optimal conditions for the bacteria to degrade petroleum were 37°C, salinity 0.5%-5%, and pH6-8.